Kind, honest self-talk on a hard pain day. Not self-worship, and not a claim that you caused the pain by being unkind to yourself.
Many people with persistent pain carry a private verdict: lazy, weak, faithless, dramatic. Self-compassion, as used here, is simply refusing that verdict without pretending the day is easy.
It is not making yourself the center of worship. It is speaking as you would to a brother or sister who is already carrying enough.
If you pray, you can place the same honesty before God. Kind speech and lament can sit in the same room.
How to
Notice the harsh line (“I am weak,” “I should be over this”).
Say the sentence you would say to a friend in the same chair.
If it helps, put a hand on your own arm. Keep it ordinary.
Kindness is not a treatment plan. It sits beside care.